<template>
  <div class="app-container">
    <!--查询表单-->
    <el-form :inline="true" class="demo-form-inline">
      <el-form-item>
        <el-input v-model="teacherQuery.name" placeholder="讲师名"/>
      </el-form-item>

      <el-form-item>
        <el-select
          v-model="teacherQuery.level"
          clearable
          placeholder="讲师头衔"
        >
          <el-option :value="1" label="高级讲师"/>
          <el-option :value="2" label="首席讲师"/>
        </el-select>
      </el-form-item>

      <el-form-item label="添加时间">
        <el-date-picker
          v-model="teacherQuery.begin"
          type="datetime"
          placeholder="选择开始时间"
          value-format="yyyy-MM-dd HH:mm:ss"
          default-time="00:00:00"
        />
      </el-form-item>
      <el-form-item>
        <el-date-picker
          v-model="teacherQuery.end"
          type="datetime"
          placeholder="选择截止时间"
          value-format="yyyy-MM-dd HH:mm:ss"
          default-time="00:00:00"
        />
      </el-form-item>

      <el-button
        type="primary"
        icon="el-icon-search"
        @click="getTeacherByPage()"
      >查询
      </el-button
      >
      <el-button type="default" @click="resetData()">清空</el-button>
    </el-form>

    <!-- 表格 -->
    <el-table
      :data="list"
      element-loading-text="数据加载中"
      border
      fit
      highlight-current-row
    >
      <el-table-column label="序号" width="70" align="center">
        <template slot-scope="scope">
          {{ (page - 1) * limit + scope.$index + 1 }}
        </template>
      </el-table-column>

      <el-table-column prop="name" label="名称" width="80"/>

      <el-table-column label="头衔" width="80">
        <template slot-scope="scope">
          {{ scope.row.level === 1 ? "高级讲师" : "首席讲师" }}
        </template>
      </el-table-column>

      <el-table-column prop="intro" label="资历"/>

      <el-table-column prop="gmtCreate" label="添加时间" width="160"/>

      <el-table-column prop="sort" label="排序" width="60"/>

      <el-table-column label="操作" width="200" align="center">
        <template slot-scope="scope">
          <router-link :to="'/edu/teacher/edit/' + scope.row.id">
            <el-button type="primary" size="mini" icon="el-icon-edit"
            >修改
            </el-button
            >
          </router-link>
          <el-button
            type="danger"
            size="mini"
            icon="el-icon-delete"
            @click="removeById(scope.row.id)"
          >删除
          </el-button
          >
        </template>
      </el-table-column>
    </el-table>

    <!-- 分页 -->
    <el-pagination
      :current-page="page"
      :page-size="limit"
      :total="total"
      style="padding: 30px 0; text-align: center"
      layout="total, prev, pager, next, jumper"
      @current-change="getTeacherByPage"
    />

  </div>
</template>

<script>
  // 引入调用
  import api from '@/api/edu/teacher.js'

  export default {
    // 写核心代码
    data() {
      return {
        list: null, // 查询接口返回值
        total: 0, // 总记录数
        page: 1, // 页码
        limit: 5, // 每页记录数
        teacherQuery: {} // 查询条件
      }
    },
    methods: {
      // 分页查询
      getTeacherByPage(page = 1) {
        this.page = page
        api.getTeacherByPage(this.page, this.limit, this.teacherQuery)
          .then((response) => {
            // console.log(response)
            this.total = response.data.total
            this.list = response.data.row
          })
      },

      // 清空查询
      resetData() {
        // 表单输入项清空
        this.teacherQuery = {}
        // 重新查询所有
        this.getTeacherByPage()
      },

      // 删除老师
      removeById(id) {
        // 提示框
        this.$confirm('此操作将永久删除此记录, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(() => {
          // 点击确定后删除
          api.removeById(id)
            .then((response) => {
              if (response.code == 20000) {
                // 提示成功
                this.$message({
                  type: 'success',
                  message: '删除成功!'
                })
                // 回到列表页面
                this.getTeacherByPage()
              }
              // console.log(response);
            })
        })
      }
    },
    created() {
      this.getTeacherByPage()
    }
  }
</script>
